Add me to the list of the more-than-satisfied customers who have bought John Holliger's tuned Rock River Arms two-stage trigger. I installed mine last night. It works incredibly well! Compared to my Bushmaster factory trigger which I couldn't even measure on my trigger pull gauge because it didn't go that high (I'm guessing 8~9 lbs.), this trigger is perfect. I can't wait to give it a try on the range. Best $115 I've spent in a while. Thanks John and RRA.